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Plasmid encoding IAA and a method thereof

Active Publication Date: 2005-03-31
COUNCIL OF SCI & IND RES
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Problems solved by technology

There are few reports on presence of Acinetobacter in soil, however, detail studies regarding its occurrence, distribution, growth pattern, physiology and its interactions with other soil microorganisms are not known.

Method used

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  • Plasmid encoding IAA and a method thereof
  • Plasmid encoding IAA and a method thereof
  • Plasmid encoding IAA and a method thereof

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[0039] Culture Media:

[0040] Five different culture media were used for isolation of Acinetobacter and other gram negative bacteria from wheat rhizosphere. The media used were violet red bile agar (VRBA) (Kleeberger et al, (1983), and Cystine lactose electrolyte deficient medium (CLED, HiMedia laboratories Limited, Mumbai, India), for all gram negative bacteria, Acinetobacter minimal medium (AMM) (Juni, 1972), and Holton's selective medium (Holton, 1983), for growth of Acinetobacter and standard plate count agar (SPCA), used for estimation of total count of culturable bacteria present in all three samples (RP, RS, and NRS).

[0041] Isolation of Acinetobacter from Rhizosphere:

[0042] Dilution plate method (Subba Rao, 1986) was used for isolation of Acinetobacter and all other gram negative bacteria from wheat rhizosphere and rhizoplane. All types of colonies were isolated from four selective media and total bacterial counts were taken from SPCA. Colonies from VRBA, AMM, CLED and Holto...

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Abstract

The present invention relates to a plasmid pUPI126 encoding indole-3 acetic acid (IAA) production; it also relates to a Acinetobacter strains having plasmid pUPI126; a bioinoculum for promoting growth of wheat plant, and lastly, it relates to a method of promoting wheat plant growth, said method comprising treating wheat seeds with the bioinoculum.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a plasmid pUPI126, encoding indole-3 acetic acid (IAA) production; it also relates to an Acinetobacter strains having plasmid pUPI126; a bioinoculum for promoting growth of wheat plant, and lastly, it relates to a method of promoting wheat plant growth, said method comprising treating wheat seeds with the bioinoculum. BACKGROUND OF THE INVENTION [0002]Acinetobacter species are ubiquitous in nature (Baumann, 1968; Juni, 1972,). Acinetobacter is commonly found in soil, water, food and also present on healthy human skin.(Saha & Chopade, 2001; Patil & Chopade 2001; Dhakephalkar et al, 1994a). Acinetobacter is one of the known opportunistic human pathogens (Dhakephalkar & Chopade 1994a; Chopade et al, 1994a & 1994b). It also possesses number of naturally occurring plasmids exhibiting resistance to antibiotics and heavy metals (Deshpande et al 1994; Shakibaie et al, 1999). There are few reports on presence of Acinetobacter in ...

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Application Information

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IPC IPC(8): A01N63/20C12N1/20C12N1/21C12N15/74
CPCA01N63/00C12N15/74C12N1/20A01N63/02A01N63/20
Inventor CHOPADE, BALU ANANDAHUDDEDAR, SHILPA BHAGAVANTSHETE, ASHVINI MOHNISHTILEKAR, JAYANT NARAYANDHAVALE, DILIP DATTATRAYGORE, SHARAD DAMODAR
Owner COUNCIL OF SCI & IND RES
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